I worked on an idea/project a couple years ago to OCR prices off of shelves in grocery stores. Basically you could scan an isle in Safeway and have a geo-based

I worked on an idea/project a couple years ago to OCR prices off of shelves in grocery stores. Basically you could scan an isle in Safeway and have a geo-based price list of grocery goods. After talking to people about it though, it became apparent that most grocery shoppers already have an idea of where they are going to buy groceries, making location more important than price. It's a razor thin industry, and even the price-sensitive coupon-using folks almost always just go to the closest Safeway equivalent.